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The Great Retreat

A Strategic Reassessment of the Opening Moves of the Great War

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Overview

Defining the Retreat

The Great Retreat, also known as the retreat from Mons, refers to the extensive withdrawal of the British Expeditionary Force (BEF) and the French Fifth Army along the Western Front during August and September 1914. This movement was necessitated by significant defeats against the advancing German Empire forces following the Battles of Charleroi and Mons.

Timeline and Scope

The retreat commenced on 24 August 1914 and continued until the Allied forces established a defensive line along the River Marne by early September. This period was marked by continuous engagements and arduous movement, fundamentally altering the initial phase of the First World War.

Strategic Significance

This withdrawal was a critical precursor to the First Battle of the Marne. While initially a tactical defeat for the Allies, the successful continuation of the retreat and the subsequent counter-offensive prevented the swift German victory envisioned by the Schlieffen Plan, ultimately leading to the establishment of trench warfare on the Western Front.

Historical Context

The Schlieffen Plan

Germany's strategic objective was outlined in the Schlieffen Plan, which aimed for a rapid encirclement and defeat of French forces before turning attention to Russia. This plan dictated a swift advance through neutral Belgium and northern France, bypassing French border defenses.

French Strategy: Plan XVII

In contrast, French strategy, embodied in Plan XVII, focused on offensive action, particularly in the Lorraine region. This offensive posture proved insufficient against the German onslaught, contributing to the need for a strategic retreat.

Initial Engagements

The Battle of the Frontiers (August 7–13, 1914) encompassed numerous engagements along the Franco-German border and in Belgium. Early French offensives, such as the Battle of Mulhouse and the Battle of Lorraine, met strong German resistance and ultimately failed to achieve decisive results, setting the stage for the retreat.

Prelude to Retreat

Battle of Charleroi (21 August)

The French Fifth Army, positioned near Charleroi, attempted to halt the German advance. However, German forces successfully crossed the Sambre River, establishing bridgeheads. Despite French efforts, the army was unable to repel the German attacks and began a southward retirement to avoid encirclement.

Battle of Mons (23 August)

The British Expeditionary Force (BEF) engaged the German 1st Army along the Mons-Condé Canal. Outnumbered and facing flanking maneuvers, the BEF was forced to withdraw. This engagement marked the beginning of the BEF's retreat, suffering significant casualties.

The Long March South

Rearguard Actions

Throughout the retreat (24 August – 1 September), various units conducted rearguard actions to delay the German pursuit. Notable engagements included the Battle of Le Cateau, the Rearguard Affair of Le Grand Fayt, the Rearguard Affair of Étreux, the Affair of Cerizy, and the Affair of Néry. These actions, though costly, bought crucial time for the main Allied forces.

These engagements involved fierce fighting, often outnumbered, to slow the German advance:

  • Le Cateau (26 August): British II Corps fought a defensive battle, inflicting heavy casualties on the Germans but suffering significant losses themselves.
  • Le Grand Fayt (26 August): Elements of the Connaught Rangers engaged German forces, resulting in casualties and missing personnel.
  • Étreux (27 August): The 2nd Royal Munster Fusiliers fought a determined delaying action, ultimately surrendering after exhausting ammunition, but preventing German pursuit of the BEF I Corps.
  • Cerizy (31 August): British cavalry engaged German cavalry patrols in skirmishes near the Oise River.
  • Néry (1 September): A notable action where a single British artillery battery held off German attacks for several hours before reinforcements arrived.
  • Crépy-en-Valois & Villers-Cotterêts (31 August - 1 September): British forces conducted delaying actions against German advances, withdrawing through these towns.
  • St. Quentin (29-30 August): French Fifth Army launched counter-attacks, which were largely unsuccessful but forced some German units to fall back temporarily.

The Continuous Movement

The retreat was characterized by constant movement, often under fire, with troops covering significant distances daily. Soldiers faced exhaustion, lack of sleep, and dwindling supplies. The German pursuit, while relentless, was also stretched, impacting their operational effectiveness.

German Pursuit

The German 1st and 2nd Armies were primarily responsible for pursuing the BEF and French Fifth Army. While successful in pushing the Allies back, the pursuit was costly and sometimes disorganized, failing to achieve a complete encirclement.

Turning the Tide

The First Battle of the Marne (5-12 September)

The Great Retreat culminated in the First Battle of the Marne. A newly formed French Sixth Army, reinforced by troops moved rapidly from Lorraine, launched a counter-offensive against the German flank. This engagement halted the German advance, forcing them to retreat towards the Aisne River.

The Race to the Sea

Following the Marne, both sides attempted to outflank each other in a series of maneuvers known as the "Race to the Sea" (September 17 – October 17). This extended the front northward to the North Sea coast and led to the establishment of static trench lines.

Stalemate and Trenches

The failure of the Schlieffen Plan and the subsequent stabilization of the front marked the end of mobile warfare in the West for the duration of the war. The Great Retreat, therefore, directly led to the trench warfare that would characterize the conflict for the next four years.

Casualty Assessment

BEF Losses in 1914

The British Expeditionary Force sustained considerable casualties during the initial phase of the war, including the Great Retreat.

BEF Casualties, 1914
Month No.
August 14,409
September 15,189

Comparative Losses

While specific figures vary by engagement, the battles during the retreat saw substantial losses on both sides. For instance, at the Battle of Mons, British casualties were approximately 1,642, while German losses were around 2,000. At Le Cateau, the BEF suffered around 5,212 casualties, with the Germans sustaining approximately 2,900.

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References

References

A full list of references for this article are available at the Great Retreat Wikipedia page

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Important Notice Regarding Historical Content

This document has been generated by an AI model, synthesizing information from publicly available sources, primarily Wikipedia. While efforts have been made to ensure accuracy and adherence to the provided source material, historical interpretations can evolve, and the data reflects a specific point in time.

This is not military strategy advice. The content is intended for educational and analytical purposes only. It should not be used as a substitute for professional historical research, military analysis, or strategic planning. Always consult primary sources and peer-reviewed historical scholarship for comprehensive understanding.

The creators of this content are not responsible for any inaccuracies, omissions, or interpretations derived from this information. Users are encouraged to critically evaluate the content and cross-reference with established historical resources.